DAUPHIN ISLAND, AL - APRIL 18: People fish with an oil rig in the background April 18, 2011 in Dauphin Island, Alabama. Dauphin Island's beaches were impacted by oil from the BP oil spill. April 20th marks the one-year anniversary of the worst environmental disaster in U.S. history. less

DAUPHIN ISLAND, AL - APRIL 18: People fish with an oil rig in the background April 18, 2011 in Dauphin Island, Alabama. Dauphin Island's beaches were impacted by oil from the BP oil spill. April 20th marks the ... more

Photo: Mario Tama

DAUPHIN ISLAND, AL - APRIL 18: People fish with an oil rig in the... Photo-3740538.37056 - San Antonio Express-News

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WAVELAND, MS - APRIL 14: A dead sea turtle is carried out of the surf by Donald Tillman April 14, 2011 in Waveland, Mississippi. Local turtle activists Donald and Shirley Tillman say they have discovered 19 dead sea turtles in Mississippi in the month of April alone and suspect they are dying due to the effects of the BP oil spill. Endangered sea turtles and dolphins are still dying in high numbers in Mississippi, which continues to be impacted by tar balls and weathered oil. There have been 67 reported sea turtle deaths through April 11. April 20th marks the one-year anniversary of the worst environmental disaster in U.S. history. less

WAVELAND, MS - APRIL 14: A dead sea turtle is carried out of the surf by Donald Tillman April 14, 2011 in Waveland, Mississippi. Local turtle activists Donald and Shirley Tillman say they have discovered 19 ... more

Photo: Mario Tama, Getty Images

WAVELAND, MS - APRIL 14: A dead sea turtle is carried out of the... Photo-3740537.37056 - San Antonio Express-News

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BARATARIA BAY, LA - DECEMBER 05: Marsh grasses covered in oil from the BP oil spill are seen December 5, 2010 in Barataria Bay, Louisiana. Nearly eight months after the spill, oil remains along the shoreline of some of the barrier islands in the area and has killed off sections of marsh grass. Some of the islands are nesting areas for birds. BP lawyers said that government estimates of the size of the oil spill are too large in a dispute that will mark how many billions of dollars in fines the oil giant will have to pay. less

BARATARIA BAY, LA - DECEMBER 05: Marsh grasses covered in oil from the BP oil spill are seen December 5, 2010 in Barataria Bay, Louisiana. Nearly eight months after the spill, oil remains along the shoreline ... more

GULF OF MEXICO - SEPTEMBER 4: (EDITORS NOTE: Image has been released by U.S. Military prior to transmission.) In this handout image provided by the U.S. Coast Guard, the damaged blow out preventer along with the Lower Marine Riser Package (LMRP) cap from the Deepwater Horizon oil rig that caused the massive oil spill is extracted and put aboard the vessel Q4000 on September 4, 2010 in the Gulf of Mexico. The 50-foot, 300-ton preventer was removed and replaced on the well head by a newly tested preventer and will be taken for evidence to a NASA facility in Louisiana in the ongoing investigation with the Deepwater Horizon Criminal Investigation Team and FBI Evidence Recovery Team. less

GULF OF MEXICO - SEPTEMBER 4: (EDITORS NOTE: Image has been released by U.S. Military prior to transmission.) In this handout image provided by the U.S. Coast Guard, the damaged blow out preventer along with ... more

GULF OF MEXICO - SEPTEMBER 4: (EDITORS NOTE: Image has been released by U.S. Military prior to transmission.) In this handout image provided by the U.S. Coast Guard, the damaged blow out preventer along with the Lower Marine Riser Package (LMRP) cap from the Deepwater Horizon oil rig that caused the massive oil spill is extracted and put aboard the vessel Q4000 on September 4, 2010 in the Gulf of Mexico. The 50-foot, 300-ton preventer was removed and replaced on the well head by a newly tested preventer and will be taken for evidence to a NASA facility in Louisiana in the ongoing investigation with the Deepwater Horizon Criminal Investigation Team and FBI Evidence Recovery Team. less

GULF OF MEXICO - SEPTEMBER 4: (EDITORS NOTE: Image has been released by U.S. Military prior to transmission.) In this handout image provided by the U.S. Coast Guard, the damaged blow out preventer along with ... more

WASHINGTON - AUGUST 20: BP Deepwater Horizon oil spill National Incident Commander Thad Allen briefs reporters about the latest progress in capping the blown-out well and the continued clean up of the Gulf of Mexico on August 20, 2010 in Washington, DC. Allen thanked the press and the public for their patience with the pace of the spill response and said he wants to put "a stake in the heart" of the Macondo well four months after it began releasing an estimated 4.1 million barrels of oil into the gulf. (Photo by Chip Somodevilla/Getty Images) *** Local Caption *** Thad Allen less

WASHINGTON - AUGUST 20: BP Deepwater Horizon oil spill National Incident Commander Thad Allen briefs reporters about the latest progress in capping the blown-out well and the continued clean up of the Gulf of ... more

BURAS, LA - JULY 05: Danene Birtell (L) and Melanie Reed clean oil off of a laughing gull at the Fort Jackson Oiled Wildlife Rehabilitation Center July 5, 2010 in Buras, Louisiana. The center has handled about 700 birds that were contaminated by oil from the Deepwater Horizon drilling rig after it exploded on April 20, leaking millions of gallons of oil into the Gulf of Mexico. (Photo by Joe Raedle/Getty Images) *** Local Caption *** Danene Birtell;Melanie Reed less

BURAS, LA - JULY 05: Danene Birtell (L) and Melanie Reed clean oil off of a laughing gull at the Fort Jackson Oiled Wildlife Rehabilitation Center July 5, 2010 in Buras, Louisiana. The center has handled about ... more

GULF SHORES, AL - JULY 04: An American flag lays in a slick of oil that washed ashore from the Deepwater Horizon oil spill in the Gulf of Mexico on July 4, 2010 in Gulf Shores, Alabama. The oil spill may have a huge negative economic impact on gulf coast businesses during what should be a busy 4th of July. Millions of gallons of oil have spilled into the Gulf since the April 20 explosion on the drilling platform. less

GULF SHORES, AL - JULY 04: An American flag lays in a slick of oil that washed ashore from the Deepwater Horizon oil spill in the Gulf of Mexico on July 4, 2010 in Gulf Shores, Alabama. The oil spill may have ... more

Photo: Joe Raedle, Getty Images

GULF SHORES, AL - JULY 04: An American flag lays in a slick of oil... Photo-3740531.37056 - San Antonio Express-News

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PORT FOURCHON, LA - JULY 03: Workers clear off some of the oil washing on to Fourchon Beach from the Deepwater Horizon oil spill in the Gulf of Mexico on July 3, 2010 in Port Fourchon, Louisiana. Millions of gallons of oil have spilled into the Gulf since the April 20 explosion on the drilling platform. less

PORT FOURCHON, LA - JULY 03: Workers clear off some of the oil washing on to Fourchon Beach from the Deepwater Horizon oil spill in the Gulf of Mexico on July 3, 2010 in Port Fourchon, Louisiana. Millions of ... more

Photo: Joe Raedle, Getty Images

PORT FOURCHON, LA - JULY 03: Workers clear off some of the oil... Photo-3740530.37056 - San Antonio Express-News

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A rig burns oil and gas near the Discoverer Enterprise (L) at the site of the Deepwater Horizon oil spill on June 19, 2010 in the Gulf of Mexico. The BP oil spill has been called one of the largest environmental disasters in American history. less

A rig burns oil and gas near the Discoverer Enterprise (L) at the site of the Deepwater Horizon oil spill on June 19, 2010 in the Gulf of Mexico. The BP oil spill has been called one of the largest ... more

Photo: Pool, Getty Images

A rig burns oil and gas near the Discoverer Enterprise (L) at the... Photo-3740528.37056 - San Antonio Express-News

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WASHINGTON - JUNE 17: BP Chief Executive Tony Hayward listens to opening statements before the Oversight and Investigations Subcommittee for a hearing on "The Role Of BP In The Deepwater Horizon Explosion And Oil Spill" June 17, 2010 in Washington, DC. BP agreed yesterday to place $20 billion into an escrow account managed by a third party to pay out claims resulting from the oil spill and also said it will not pay out additional dividends to shareholders for the remainder of the year. (Photo by Alex Wong/Getty Images) *** Local Caption *** Tony Hayward less

WASHINGTON - JUNE 17: BP Chief Executive Tony Hayward listens to opening statements before the Oversight and Investigations Subcommittee for a hearing on "The Role Of BP In The Deepwater Horizon Explosion And ... more

WASHINGTON - JUNE 17: With protesters behind him, BP Chief Executive Tony Hayward awaits the start of a hearing before the Oversight and Investigations Subcommittee on "The Role Of BP In The Deepwater Horizon Explosion And Oil Spill" June 17, 2010 in Washington, DC. BP agreed yesterday to place $20 billion into an escrow account managed by a third party to pay out claims resulting from the oil spill and also said it will not pay out additional dividends to shareholders for the remainder of the year. (Photo by Alex Wong/Getty Images) *** Local Caption *** Tony Hayward less

WASHINGTON - JUNE 17: With protesters behind him, BP Chief Executive Tony Hayward awaits the start of a hearing before the Oversight and Investigations Subcommittee on "The Role Of BP In The Deepwater Horizon ... more

WASHINGTON - JUNE 16: Jars of water mixed with oil that were collected from the Gulf Coast waters of Louisiana and Alabama are stacked in front of Gulf Coast residents as they attend a news conference on Capitol Hill June 16, 2010 in Washington, DC. About 90 residents from the Gulf Coast participated in a news conference to tell stories on how the oil spill has impacted their lives and to call on for a clean energy future. BP announced that they will finance a $20 billion fund to compensate individuals whose jobs and incomes have been affected by the BP oil spill in the Gulf of Mexico. less

WASHINGTON - JUNE 16: Jars of water mixed with oil that were collected from the Gulf Coast waters of Louisiana and Alabama are stacked in front of Gulf Coast residents as they attend a news conference on ... more

Photo: Alex Wong, Getty Images

WASHINGTON - JUNE 16: Jars of water mixed with oil that were... Photo-3740524.37056 - San Antonio Express-News

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WASHINGTON - JUNE 16: BP Chief Executive Tony Hayward (C), BP Managing Director Robert Dudley (R) and BP America President Lamar McKay (L) leave the White House following a meeting with U.S. President Barack Obama June 16, 2010 in Washington, DC. It was announced after the meeting that BP has agreed to place $20 billion into an escrow account mediated by a third party to pay out claims against damages caused by the Deepwater Horizon oil spill. (Photo by Win McNamee/Getty Images) *** Local Caption *** Lamar McKay;Robert Dudley;Tony Hayward less

WASHINGTON - JUNE 16: BP Chief Executive Tony Hayward (C), BP Managing Director Robert Dudley (R) and BP America President Lamar McKay (L) leave the White House following a meeting with U.S. President Barack ... more